10: Quantum Field Theoretic Perturbation Theory

The following sections are included:

• The Interacting n-Point Function

• Perturbation Expansion for Green Functions

• Feynman Rules for ϕ⁴-Theory

  • The Vacuum Graphs

• The Two-Point Function

• The Four-Point Function

• Connected Green Functions

  • One-Particle Irreducible Graphs

  • Momentum Space Version of Diagrams

• Green Functions and Scattering Amplitudes

• Wick Rules for Scattering Amplitudes

• Thermal Perturbation Theory

• Notes and References